Packing for testing-machines.



PACKING FOR TESTING MACHINES.

APPLICATION FILED AUG. 20, 1909. RENEWED JULY 13, 1912.

T. OLSEN.

Patented Aug. 20, 1912.

ran stars PATENT rice,

TINIUSOLSEN, OF PHILADELPHIA, PENNSYLVANIA.

PACKING FOR TESTING-MACHINES.

Application filed August 20, 1909, Serial No. 513,856.

Specification of Letters Patent.

Renewed July 13, 1912. Serial No. 709,268.

To all whom it may concern:

Be it known that I, T1NIUs OLSEN, a citi-. zen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Packing for Testing- Machines, of which the following isa specification.

The object of my invention is to provide a novel form of packinparticularly designed for use with hydran ic machinery employingrelatively'high fluidpressures, the construction of such packing beingrelatively simple and the arrangement of its parts being such that itshall satisfactorily perform its functions under the most adverseconditions. These objects-and other advantae geous ends I secure ashereinafter set forth,

reference being had to the accompanying drawings, in which Figure 1, isa vertical section ofv a testing machine showing my packing as appliedthereto; and Fig. 2 is a vertical section on an enlarged scaleillustrating the detail con-. struction of myinvention.

In the above drawings 2 is the base of a testing machine which isprovided with vertically extending'columns 3 and a removable ,other bodyof material under test.

platen 22 designed to engage the beam or This platen is mounted upon aplunger 13 made with a cylindricalportion 12 of less diam eter' than itshead or main portion and operative in a cylindrical cavity in the base2;

The heador main portion of the plunger is operative in a cylinder 11mountedon the base 2 and in order to prevent leakage around the plungerhead I provide the sand cylinder with a'gland 16 of the well known form,holding it in place by bolts-as shown, and causing it to act upon thepacking which constitutes. the main feature of'my invention. Saidpacking is placed in a suitable recess in the walls of the cylinder 11under the glanda-nd consists of a ring 17 of leather or other suitablematerial having an inverted U-shap'ed section, with its two terminaledges beveled inwardly for the refiexible packing casing and ception ofthe ring 18 which is beveled at both of its edges to fit the bevelededges of said U-shaped'ring.

Openings 19 are provided at intervals in the ring 18 and this latter isat all times held in engagement with the ring 17 by means of PatentedAug.20 ,il912.

springs 20 placed at intervals around the cylinder. As is obvious anyliquid escaping between the wall of a cylinder 11 and the plunger 13will pass under the ring 18 and through the same into the interior ofthe U- shaped ring 17', with the result that-the side walls of this.latter are'spread out with a force depending partly upon the pressure ofthe liquid and partly on the action of the ing beveled edges restingon'the inclined edges ofsaid flexible packing and provided with openingsfor permitting the. passage of liquid to the packing; and springs backof the ring arranged to force .it toward the packing whereby the edgesof the latter are forced apart. l

2. The combination of a recessed casing;

a plunger operative therein; a U-shaped located in the recessof thearranged to force the latter toward its edges are forced against thecasing and the plunger; said ring being perforated to permit freeentrance of fluid to the interior of the packing.

In testimony whereof, I have signed my ringand the packing whereby nameto this specification, in the presence of two subscribing witnesses,

Witnesses:

WILLIAM E. BRADLEY, WM. BARR.

having 1ts edges inclined; a ring having beveled edges resting ontheinclined edges of the packlng; springs back of the TINIUS oLsEiI.

